Process for development of tunnel or shafts in unstable mountains

Process for development of tunnel or shafts in unstable mountains

The walling of the tunnel or the shaft is provided with reinforcement and is build with sprayed concrete. A rolled material is used as the reinforcement and this is unwound in a spiral along the tunnel wall tightly behind the cutting ring. The unrolled material, wound round the tunnel wall, is conti...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: BAUMANN, LOTHAR., 42555 VELBERT, DE
Format: Patent
Sprache:eng ; ger
Schlagworte:
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The walling of the tunnel or the shaft is provided with reinforcement and is build with sprayed concrete. A rolled material is used as the reinforcement and this is unwound in a spiral along the tunnel wall tightly behind the cutting ring. The unrolled material, wound round the tunnel wall, is continuously sprayed with concrete. The rolled material may be a ribbed construction steel, or alternatively consist of plastics. An assembly is provided at the tunnel drill system which, as the drill advances, draws out the rolled material to be laid tightly in a spiral round the tunnel wall directly after the cutting ring, according to the advance of the drill through the ground.